Home / 13,452.10-18,555.26-8,678.14

Finding the Fourth Proportional to 13,452.10, 18,555.26 and 8,678.14

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Solution

The fourth proportional to 13,452.10, 18,555.26 and 8,678.14 is: 11,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.10 : 18,555.26 = 8,678.14 : x
  2. Step 2: Convert to fraction form
    13,452.10/18,555.26 = 8,678.14/x
  3. Step 3: Cross multiply
    13,452.10x = 18,555.26 × 8,678.14
  4. Step 4: Simplify right side
    13,452.10x = 161,025,144.02
  5. Step 5: Solve for x
    x = 161,025,144.02/13,452.10
  6. Step 6: Final answer
    x = 11,970.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.